Take-up mechanism for narrow-ware looms



Nay. 25, l924.

TAKE-UP MECHANISM FOR NARROW WARE LOOMS Filed Avril a, $2.2

I V M k Iwvs'vvzfor 5 F5 a E/Ariqye E HolvweG M f l i ii,

A 60)" ways lZ-LBRIDGE R. HOLMES KNOWLES LOOM WORKS, OF WORCEMASSACHUSETTS.

STATES PATENT or WORCESTER,

MASSACHUSETTS, .ASSIGNOR T0 CROMPTON & STER, IVIASSAC'HUSETTS, ACORPORATION OF TAKE-UP MECHANISIVL FOR, NARROW-HARE LOOMS.

Application filed April 5,

17 0 all 7mm it may concern:

Be it known that I, ELBRIDGE R. I-IoLMns, a citizen of the UnitedStates, residing at lVorcester, in the county of lVorcester and State ofMassachusetts, have invented a new and useful Take-Up Mechanism forNarrow Ware Looms, of which the following 18 a specification.

This invention relates nism for narrow ware ticularly designed for u anarrow fabric with one edge of greater length than the other It is theobject of my a take-up mechanism for such designed that it will closelyadjacent to a take-up mechalooms, and is parse in looms weaving orselvage edge.

to provide a loom so engage the fabric invention the fell of the cloth,and

that it will provide a substantially even tension on all parts of thefabric and warp.

To the attainment of this object I provide a plurality of taperedtake-up rolls, preferably of relatively small diameter and positionedclosely adjacent the fell of the cloth.

These rolls are My invention further ments and combinations positivelydriven by intermittently actuated feeding devices, and adrotated inopposite direcrelates to arrangeof parts which will be hereinafterdescribed and more particularly pointed out in the appended claims.

A preferred form of the invention is shown in the drawmgs in which Fig.1 is a front elevation of parts of a narrow ments;

Fig. 2 is a side shown in Fig. 1;

ware loom embodying my improveelevation of the parts;

Fig. 3 is an enlarged rear elevation of the take-up rolls;

Fig. 4 is an enlarged sectional side elevation, taken along the line 4&in Fig. 1;

Fig. 5 is an enlarged along the line 5-5 in F Fig. 6 is an enlargedalong the line 66 in F sectional view taken ig. l; and

sectional view taken ig. 1.

Referring to the drawings, I have shown portions of the frame 1 loom,having a breast beam 11, and 12 mounted to swing about a shaft 13 0 of anarrow ware a lav supported in bearings 14 near the bottom of the loom.

A winding shaft 15 bearings in the lower p is also mounted in art of theframe 10 1922. Serial No. 549,841.

and is intermittently rotated by feeding mechanism comprising a ratchetwheel 16 and a feed pawl 17 mounted on a bar 18 adjustably secured to anarm 19 fixed to the end of the shaft 13. The ratchet wheel 16 is fixedto one end of a short shaft 20 mounted in the loom frame and having apinion 21 on its inner end engaging a gear 22 on the shaft 15. A ratchetwheel 23 and holding pawl 24 prevent backward rotation of the shaft 15.l

A plurality of tapered winding rolls 25 are loosely supported on theshaft 15 and each roll has. a hub or shoulder 26 on which a frictionclamp 27 is mounted. A spring 28 (Fig. 5) forces the two parts of theclamp yieldingly against the shoulder 26 and the pivot-pin 29 of theclamp is extended to enter a recess in a driving arm 30 fixed to theshaft 15. Each roll 25 is thus yieldingly connected with the shaft 15.

In practice it is customary to rotate the shaft 15 at a slightly higherspeed than is necessary to take up the cloth on the rolls 25, the rollsslipping to permit the additional angular movement of the shaft.

The parts thus far described are the usual type and form no part of mypresent invention, which relates particularly to the provision ofimproved take-up mechanism mounted on the breast beam and closelyadjacent the fell of the cloth at the forward position of the lay 12.

This improved take-up mechanism coniprises a plurality of take-up rolls31, 32 and 33 mounted in hearings in a bracket 3 1 and mounted as a uniton the breast-bean1 11. The take-up rolls are each provided with asprocket 35 having driving engagement with a chain 36, which in turn isdriven by a sprocket 37 on the winding shaft 15. The chain engages thesprockets of the take-up rolls as shown in Fig. 2, and the path of thefabric F around the rolls is clearly shown in Fig. 4, in which thedirection of rotation of the different rolls is also indicated. Theserolls are positively rotated with the shaft 15 and place the desired tension upon the fabric and warp at a point closely adjacent the fell ofthe cloth.

This location of the take-up rolls near the fell of the cloth is veryimportant, as the inequality in length of the two sides of the fabric atthis point is so slight that it does not seriously interfere withproviding uni form tension throughout the width of the cloth. If,however, the tension is applied at a point more remote from the lay, theinequality in the length of the cloth at different points in its widthinterferes seriously with providing uniform tension therefor.

Having thus described my invention, I do not wish to be limited to theparticular details herein shown otherwise than as set forth in theclaims.

What I claim .-is:

1. In a narrow ware loom, in combination, a loom frame, a lay, aplurality of relatively small tapered takeup rolls mounted on said frameadjacent the extreme forward position of said lay, and means .to drivesaid rolls, said rolls being spaced apart and hav ing their axesparallel, and said driving means comprising a single continuous drivingmember moving in a closed path and successively engaging all of saidrolls and rotating adjacent rolls in opposite directions.

2. In anarrow ware loom, in combination, a loom frame, a lay, aplurality of relatively small tapered take-up rolls mounted on said'lrame adjacent the extreme forward position of said lay, and means todrive said rolls, said rolls being spaced apart and having their axesparallel and adjacent rolls being rotated in opposite directions, andsaid driving means comprising sprockets on said rolls, a sprocket chainsuccessively engaging different sprockets, and means to drive saidchain.

3. In a narrow ware loom, in combination, a loom frame, a lay, aplurality of relatively small tapered take-up rolls mounted on saidframe adjacent the extreme forward position of said lay, and means todrive said rolls, said rolls being spaced apart and having their axesparallel and adjacent rolls being rotated in opposite directions, andsaid driving means comprising sprockets on said rolls, a sprocket chainengaging successive sprockets on alternate sides of said chain to rotatesaid sprockets in opposite directions, and means to drive saidchai-n.

In testimony whereof I have hereunto a'tfixed my signature.

ELBRIDGE B. HOLMES.

